The utility model relates to a solar voice prompt device for power safety. The voice prompt device is characterized by comprising a pedestal metal rod, a safety voice prompter and a solar energy collection panel, wherein the pedestal metal rod is fixed on the ground at a preset position in a transformer station; the safety voice prompter is arranged on the pedestal metal rod, can sense whether there is a person at the preset position, and carries out voice prompt when there is a person; and the solar energy collection panel is arranged on the safety voice prompter via a connecting rod, and an output terminal of the solar energy collection panel is connected with a charging terminal of a storage battery via a power line which is built in a connecting rod. The solar voice prompt device is convenient to install, it is not required to take power from a dc screen in a master control room of the transformer station, and different kinds of faults caused by that the power line is too long of a traditional safety voice prompter can be avoided.